Feeding mechanism



Sept. 10, 1929. w. DALHE'MER 1,728,1o9

- FEDING uEcHANIsM Filed Dec. 31. 1926 2 Sheets-Sheet 1 /lVl/ENTR I W a/h/'mer' Sept. 10, 1929. w, DALHElMER 1,728,109

FEEDING IECHANISM Filed Dec. 51. 1926 2 SheetS-Sheet 2 Patented Sept. 10, 1929.

UNITED STATES WALTHER DALI'IEIMER, OF EINDI'IOVEN, NETHERLANDS, ASSIGNOR T0 V.` E'VlLIIl'IPSl`` GLOEILAMPENFABRIEKEN, OF EINDHOVEN, NETHERLANDS, A LIMTEDILIABILITY COMPANY OF THE NETHERLANDS.

FEEDING MECHANISM.

Application filed December 31, 1926, Serial No. 158,397, and in the Netherlands Februaryi, 1926.

This invention has reference to apparatus for feeding and Cutting helices in pieces with any required number of windings.

It is often desirable to divide the said helices into such parts as to obtain helices with a broken number of windings. Thus, for example, it may be necessary in the manufacture of discharge tubes to use helices of 161/2 or 17% Windings.

According to the invention the apparatus comprises in combination a feeding device for the helices and cutting means, said feeding device and Cutting means being rotatable with respect to each other. The Cutting` device may rotate around the helices; it is also possible to have the cutting device stationary provided and to impart to the helices a rotary movement.

The said apparatus will lbe more clearly understood by reference to the aceompanying drawings. In the said drawings:

Figure 1 is an elevation of apparatus according to the invention, in which the cutting device for sake of clearness is omitted.

Figure 2 is a cross-section taken on the line II-II of Figure 1 in which the cutting` device is indicated.

Figure 3 is a front view in detail of the Cutting device. p l

Referring to Figure 1 a frame 1 has mounted on it a pedestal 2. In this pedestal is mounted a sleeve 3 in which a shaft 6 is adapted to rotate and to the periphery of which are secured ball-bearings 4 and 5 for supporting' a rotary body 7. The shaft 6 which is provided with a central bore 13 has mounted on it a head 10 on which are arranged brackets 11 and 12 for supporting rolls 14 and 15. The roll 15 is mounted on a lever 16 pivoted at 17 and a spring 18 tends to force said roll against the roll 14. The roll 14 is keyed to a shaft 19 which has in addition gears 20 and 21 rigidly attached to it. The roll 15 is adapted to rotate by means of a shaft 22 and moreover it is rigidly coupled to a pinion 23 which 'is fast on the same shaft. By the spring 18 said pinion is kept in engagement with the gear 20. When therefore the gear 21 is being actuated both the roll 14 and the roll 15 are operated. 'The gear 121 forms part of 7 spiral gearing of which the worm 26 which i is fast on the body 7 constitutes the driving element yso that a rotation of the body 7 will. cause the gear 21 to rotate. In order that the body 7 may be rotated it'is provided with a toothed part 9 which is adapted` to be rotatjed by any gear driving. i,

As desci'ibed hereinbefore the shaft 6 has mounted on it the rolls 14 and-15.V The other end of the said shaft has fast on it a gear 8 which is in engagement with a gear 28 mounted on a shaft 27. Vhenthe gear 8 is not rotated'the head 10 will not `shift i relatively to the sleeve 3 and the rolls V14 andV 15 will therefore be stationary in a determined position, for example in the vertlcal position shewn in Figure 1.

ByV reai son, however, of a rotation being imparted i to the shaft 27, the gear 8 willrotate and in addition to the movement around their own axes, the rolls 14 and 15 will receive a rotation around the center line of the` sleeve 3. i i

The shaft 6 is provided with a centralV bore 13 for the passageof the heliX which 3is to be fed. In'connection therewith a guide 31 is mounted which is opencd ,out in close Vrelation to the pointof contact of the two rolls.V W'hen Va helix is passed through the bore 13 and the guide 31 it will be gripped by the rollsy 14 and 15 which dueV to their rotary movement, will feed the hell); through the guide 51 of the cutting` device, (F igul'es 2 and In order to grip the helix in the right way the rolls 14 and 15 are provided With grooves that correspond to the windings of the helix. On a rotary movement being imparted `to a pulley secured to the shaft 27 the gear 8 will start rotating and as a result the rolls 14 and 15 will receive a rotary moveinent about the centre lines of the shaft 6 or the sleeve 3.

In operation a helix will be fed along the Cutting device which is formed by the guide 51 and the cutter 50. Due to the rotation of the helix it will be possible to cut helices be pushed forwardly ten Windings and to give the shaft 6 simultaneously a quarter of a revolution. If now the cutter 50 severs the helix at every ten Windings, the helices Will have either 9% or 10% Windings. It is evident that by a combination of'these tWo niovements a helix of any number of Windings can be obtained.

VVhatI claim is 10 1. Apparatus for feeding and Cutting helixes in pieces With any required'number of windings oomprising rolls adapted to feed the helix and means to iinpart a rotation to said rolls around the centre line of the helix in addition to the rotary movement of said rolls around their axis and Cutting means adapted to cooperate With the said feeding means.

2. Apparatus for feeding and Cutting 'he1ixes in pieces with any required number of Windings coinprising rolls and a centrally bored rotary shaft, said rolls being mounted on said shaft, a body rotating aroundl said shaft, Vfor imparting rotary movement to said rolls around their own axis and cutting means being adapted to cooperate With said rolls.

3. Apparatus for feeding and Cutting helixes in pieces With any required number of windings ooinprising rolls and centralo ly bored rotary shaft, said rolls being mounted on said shaft, a body rotating around said shaft, for imparting rotary movement to said rolls around their own axis, a Worm gear being ooupledv to said rolls, said body being provided With spiral teeth which engage said Worln gear and a Cutting device adapted to cooperate with said rolls.

4. Apparatus for feeding and Cutting heiixes in pieces With any required number of Windings oomprising a feeding device for the heiiX and Cutting means, said device and o said means being rotatable With respect to each other, the aXis of rotation being the centre line of the helix.

In testimony Whereof I afiix my signature, at the city of Eindhoven, this 15th day of December, 1926.

i W'ALTHER DALHEIMER. 

